Buried cable current carrying capacity calculation method
A technology of flow calculation and calculation method, which is applied in the direction of calculation, electrical digital data processing, design optimization/simulation, etc. It can solve the problems of increased workload and cumbersome calculation process, and achieve the effect of reducing workload.
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[0036] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.
[0037] Such as figure 1 As shown, a method for calculating the ampacity of directly buried cables includes the following steps:
[0038] S1. Establish a two-dimensional temperature field model of the direct-buried cable, and establish a geometric model of the direct-buried cable according to the cable laying and environmental parameters in the two-dimensional temperature field model.
[0039] Considering that the power cable line generally reaches hundreds of meters to several thousand meters, and its outer diameter is often about 100mm, compared with the power cable cross section and the outer diffusion cross section, the length of the power cable line is approximately infinite, so the soil is buried directly The cable temperature field is simplified to a two-dimensional temperature field model for analysis and...
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